1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
| package goffmpeg
|
| /*
| #include <stdlib.h>
| #include "libcffmpeg.h"
| */
| import "C"
| import "unsafe"
|
| // BuildDecoder build decoder
| func (h *GoFFMPEG) BuildDecoder() {
| C.wrap_fn_decoder(unsafe.Pointer(libcffmpeg), h.ffmpeg)
| }
|
| // GetYUV get yuv data
| func (h *GoFFMPEG) GetYUV() ([]byte, int, int, int64) {
| var fid C.long
| var length C.int
| var srcW, srcH, srcF C.int
|
| p := C.wrap_fn_decoder_pic(unsafe.Pointer(libcffmpeg), h.ffmpeg, &srcW, &srcH, &srcF, &length, &fid)
| if p == nil || length == 0 || srcW == 0 || srcH == 0 {
| return nil, 0, 0, 0
| }
| defer C.free(unsafe.Pointer(p))
|
| return C.GoBytes(p, length), int(srcW), int(srcH), int64(fid)
| }
|
| // GetYUV2 get yuv data
| func (h *GoFFMPEG) GetYUV2() (unsafe.Pointer, []byte, int, int, int64) {
| var fid C.long
| var length C.int
| var srcW, srcH, srcF C.int
|
| p := C.wrap_fn_decoder_pic(unsafe.Pointer(libcffmpeg), h.ffmpeg, &srcW, &srcH, &srcF, &length, &fid)
| if p == nil || length == 0 || srcW == 0 || srcH == 0 {
| return nil, nil, 0, 0, 0
| }
| const maxLen = 0x7fffffff
| size := int(length)
| data := (*[maxLen]byte)(unsafe.Pointer(p))[:size:size]
|
| return unsafe.Pointer(p), data, int(srcW), int(srcH), int64(fid)
| }
|
|
